21018846

素因数分解:

$2^1\times 3^1\times {\mathrm{53}}^1\times {\mathrm{157}}^1\times {\mathrm{421}}^1$

素因数の和:636

約数の個数: 32

約数和(自身を含む): 43206048

約数和(自身を除く): 22187202

約数列:

[1, 2, 3, 6, 53, 106, 157, 159, 314, 318, 421, 471, 842, 942, 1263, 2526, 8321, 16642, 22313, 24963, 44626, 49926, 66097, 66939, 132194, 133878, 198291, 396582, 3503141, 7006282, 10509423, 21018846]

約数ペア:

[(1, 21018846), (2, 10509423), (3, 7006282), (6, 3503141), (53, 396582), (106, 198291), (157, 133878), (159, 132194), (314, 66939), (318, 66097), (421, 49926), (471, 44626), (842, 24963), (942, 22313), (1263, 16642), (2526, 8321)]